4 eyes needs help ......69 GMC - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jodymc10 · 03-10-2011, 08:41 PM

I just got hell of a deal on a 69 GMC. I have stripped it down and starting the rebuild. I am wanting to do a disc brake conversion on the front, but want to keep it 6 lug.
The real question is.....what is a good drop combo for the front-back? 3"-5"?

I dont want to cut anything to make the drop, shackles, leaf spring and drop spindles would be the way to go. Is that possible? or is there a different combo? I know 2 1/2 spindles are what I see for sale on most sites, but I think I would like it a little lower than 2 1/2 in front.

What is a good tire/wheel size to get? I would like to use Ralley Sport rims..maybe 10" on back and 8" in front. I have seen several trucks that I like that have this set up.

Also....I am trying to do this as cheep as possible. What is the best??

Thanks!
Jody

Jacfourteen · 03-10-2011, 08:52 PM

Go to early classic enterprises for the disc brake swap, they have the whole kit for I think $899, this includes 6 lug disks, drop spindles, calipers, hardware...everything. If you want to go lower then get some drop springs to go along with it. For the rear you can either get drop leaves and shakles or do a flip kit (requires cutting the spring perches off the axle and relocating them to the top, for about 5" of drop). Hope this helps get you started!

Jacfourteen · 03-10-2011, 08:56 PM

Here's the link for the kit I was talking about, you have to find the options you want from the drop down menu, it is $859.

I forgot to mention if you wanted to go cheaper you could also get all the parts from a newer truck and then just buy the 6 lug rotors from ECE.

http://www.earlyclassic.com/catalog.aspx

Jodymc10 · 03-10-2011, 09:01 PM

When you say new truck...what years would I be looking for. I have several scap yards around that i can hit up for parts.

Jacfourteen · 03-10-2011, 09:18 PM

Quote:

Originally Posted by Jodymc10

When you say new truck...what years would I be looking for. I have several scap yards around that i can hit up for parts.

You can either get the parts off of a 71-72 or if you get the whole crossmember off of a 73-82 if I remember right. There are lots of people on here that have done the 73-82 swap and they say it bolts right up other than having to oval out 2 of the wholes on the frame. I'll see if I can find a link for you.

Jacfourteen · 03-10-2011, 09:22 PM

Heres all the info you need http://67-72chevytrucks.com/vboard/s...ossmember+swap.

Look at the second post to see how the swap was accomplished (using what year parts). I guess you can use anywhere from 73-87 parts, but the 81-87 are lighter duty (1" thick vs 1.25" for the older ones). I think the 6 lug rotors from ECE I mentioned above will fit anything with a 1.25" rotor.

Jodymc10 · 03-12-2011, 11:10 AM

Thanks for the help, Now its junk yard time.

Jody

03-10-2011, 08:41 PM	#1
Jodymc10 Registered User Join Date: Mar 2011 Location: Grapevine, Texas Posts: 14	4 eyes needs help ......69 GMC I just got hell of a deal on a 69 GMC. I have stripped it down and starting the rebuild. I am wanting to do a disc brake conversion on the front, but want to keep it 6 lug. The real question is.....what is a good drop combo for the front-back? 3"-5"? I dont want to cut anything to make the drop, shackles, leaf spring and drop spindles would be the way to go. Is that possible? or is there a different combo? I know 2 1/2 spindles are what I see for sale on most sites, but I think I would like it a little lower than 2 1/2 in front. What is a good tire/wheel size to get? I would like to use Ralley Sport rims..maybe 10" on back and 8" in front. I have seen several trucks that I like that have this set up. Also....I am trying to do this as cheep as possible. What is the best?? Thanks! Jody

03-10-2011, 08:52 PM	#2
Jacfourteen Big Red - Now its a SWB! Join Date: Jun 2009 Location: Oroville, Ca Posts: 1,624	Re: 4 eyes needs help ......69 GMC Go to early classic enterprises for the disc brake swap, they have the whole kit for I think $899, this includes 6 lug disks, drop spindles, calipers, hardware...everything. If you want to go lower then get some drop springs to go along with it. For the rear you can either get drop leaves and shakles or do a flip kit (requires cutting the spring perches off the axle and relocating them to the top, for about 5" of drop). Hope this helps get you started! __________________ 68 3/4 ton (Project)-350 Small Block, .030 over, 10:1 comp, 3998993 heads, C3BX edelbrock intake, comp cams XE268, Holley 670 SA, long tube headers, dual flow 40's, E-fan, Alum rad, currently under the knife getting shortened and bagged build thread 41 3/4 ton (wife's)-flatbed, fully restored to original 01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's 02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's

03-10-2011, 08:56 PM	#3
Jacfourteen Big Red - Now its a SWB! Join Date: Jun 2009 Location: Oroville, Ca Posts: 1,624	Re: 4 eyes needs help ......69 GMC Here's the link for the kit I was talking about, you have to find the options you want from the drop down menu, it is $859. I forgot to mention if you wanted to go cheaper you could also get all the parts from a newer truck and then just buy the 6 lug rotors from ECE. http://www.earlyclassic.com/catalog.aspx __________________ 68 3/4 ton (Project)-350 Small Block, .030 over, 10:1 comp, 3998993 heads, C3BX edelbrock intake, comp cams XE268, Holley 670 SA, long tube headers, dual flow 40's, E-fan, Alum rad, currently under the knife getting shortened and bagged build thread 41 3/4 ton (wife's)-flatbed, fully restored to original 01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's 02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's

03-10-2011, 09:01 PM	#4
Jodymc10 Registered User Join Date: Mar 2011 Location: Grapevine, Texas Posts: 14	Re: 4 eyes needs help ......69 GMC When you say new truck...what years would I be looking for. I have several scap yards around that i can hit up for parts.

03-10-2011, 09:22 PM	#6
Jacfourteen Big Red - Now its a SWB! Join Date: Jun 2009 Location: Oroville, Ca Posts: 1,624	Re: 4 eyes needs help ......69 GMC Heres all the info you need http://67-72chevytrucks.com/vboard/s...ossmember+swap. Look at the second post to see how the swap was accomplished (using what year parts). I guess you can use anywhere from 73-87 parts, but the 81-87 are lighter duty (1" thick vs 1.25" for the older ones). I think the 6 lug rotors from ECE I mentioned above will fit anything with a 1.25" rotor. __________________ 68 3/4 ton (Project)-350 Small Block, .030 over, 10:1 comp, 3998993 heads, C3BX edelbrock intake, comp cams XE268, Holley 670 SA, long tube headers, dual flow 40's, E-fan, Alum rad, currently under the knife getting shortened and bagged build thread 41 3/4 ton (wife's)-flatbed, fully restored to original 01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's 02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's Last edited by Jacfourteen; 03-10-2011 at 09:24 PM.

03-12-2011, 11:10 AM	#7
Jodymc10 Registered User Join Date: Mar 2011 Location: Grapevine, Texas Posts: 14	Re: 4 eyes needs help ......69 GMC Thanks for the help, Now its junk yard time. Jody

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